Performance of the 35 kV/90 MVA SFCL in Live-Grid Fault Current Limiting Tests

Author

Xin, Y. ; Hong, H. ; Wang, J.Z. ; Gong, W.Z. ; Zhang, J.Y. ; Ren, A.L. ; Zi, M.R. ; Xiong, Z.Q. ; Si, D.J. ; Ye, F.

Author_Institution

Innopower Supercond. Cable Co., Ltd., Beijing, China

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1294

Lastpage

1297

Abstract

A 35 kV/90 MVA saturated iron-core type superconducting FCL was developed and installed in a transmission network at Puji substation of China Southern Power Grid in 2007. To verify its capacity in fault current limiting, compliance with utility requirement, and fail-safe, current limiting tests were conducted in live-grid under artificially imposed short-circuit conditions on July 20, 2009. Five tests were carried out either under different grid conditions or with different objectives. The testing results indicate that the FCL has a reliable current limiting capability and its performance is in good agreement with the design expectations. The results also show that the device satisfies the requirements of grid routine protective procedures. In this paper, we report some details of these tests and the resultant data.

Keywords

power grids; power transmission protection; substation protection; superconducting fault current limiters; AD 2009 07 20; China Southern Power Grid; Puji substation; apparent power 90 MVA; artificially imposed short-circuit conditions; fail-safe current limiting tests; grid conditions; grid routine protective procedures; live-grid fault current limiting tests; saturated iron-core type superconducting FCL; transmission network; utility requirement; voltage 35 kV; Circuit faults; Coils; Fault currents; Iron; Limiting; Magnetic cores; Magnetization; Fault current limiting; power transmission superconductivity; short-circuit; superconducting devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2105452

Filename

5715904